Sorry for all of the questions, but I'm confused


I had what is believe to have been a chemical pregnancy about 3 weeks ago, however my body is still changing. I've had a miscarriage before, but it wasn't this early on, so I know my body was going through changes. My breasts/nipples have become very sore, really sore today and I've noticed white bumps on my areolas. I have this pull like feeling behind my belly button and I've expierenced nausea, overheating, hot flashes, fatigue, heartburn,cravings and aversions. I haven't taken a test since the doctors test said negative. Is this normal after a chemical pregnacy? I think I'm beginning to stress myself cause my body is doing this without a baby present and its saddening.